Gas panel of infrared radiation

ABSTRACT

A gas panel for infrared radiation comprises a gas supply conduit to which are connected infrared burners in substantially horizontal rows. An ignition device is secured to a burner in one of the rows and screens are mounted in that row of burners over at least every second burner in the path of ascending flow of combustion products, so that in the process of firing the burners of the panel the flame is directed to adjacent burners for ignition thereof. The burners may be horizontal or vertical or in a mixed arrangement, and they may be slightly staggered in each row. The screens can be flat or curved and in the latter case, the concave surfaces of the screens face the burners.

United States Patent Alexandr Vasilievich Zavadsky ul. Artema 76, Kv.l3;

Georgy Fedorovich Mogilevsky, Malo Mastitskaya ul. 30; AnatolyVitalievich Markovsky, Vyborgskay ul. 80/17, Kv. 16; Georgy SergeevichMarchenko, ul. lvana Sergienko ll, Kv. 67, Kiev, U.S.S.R.

[21] Appl. No. 784,766

[22] Filed Dec. 18, 1968 [45] Patented Jan. 5, 1971 [72] Inventors [54]GAS PANEL OF INFRARED RADIATION 9 Claims, 7 Drawing Figs.

52 US. (I 126/92, 431/278, 431/328 [51] Int. Cl ..F23d 13/12, F24c 3/04[50] Field of Search 126/85, 92, 92B, 92RC, 92C; 431/191, 192, 278, 283,285, 286, 328, 329

[56] References Cited UNITED STATES PATENTS 3,114,410 12/1963 Schneiderl26/92BX 3,291,115 12/1966 Forniti l26/92B FOREIGN PATENTS 842,5967/1960 Great Britain l26/92B Primary Examiner-Charles J. MyhreAttorney-Waters, Roditi, Schwartz & Nissen ABSTRACT: A gas panel forinfrared radiation comprises a gas supply conduit to which are connectedinfrared burners in substantially horizontal rows. An ignition device issecured to a burner in one of the rows and screens are mounted in thatrow of burners over at least every second burner in the path ofascending flow of combustion products, so that in the process of firingthe burners of the panel the flame is directed to adjacent burners forignition thereof. The burners may be horizontal or vertical or in amixed arrangement, and they may be slightly staggered in each row. Thescreens can be flat or curved and in the latter case, the concavesurfaces of the screens face the burners.

PATENTED JAN 5 [WI GAS PANEL F INFRARED RADIATION The present inventionrelates to gas panels of infrared radiation.

The panels of the present invention are most advantageous in heatingwagons and other vessels intended for transportation or the periodicplacing therein of freezing cargoes, for instance, coal.

In well-known gas panels of infrared radiation each burner has anelectric igniter, and means of control and inspection, which usuallyresults in the design of the panels being complicated, and theiroperation unreliable.

Some panel designs have one or several auxiliary burners to start themain burners in case of their spontaneous extinction.

The operation of these panels create problems relating to the locationof the auxiliary burners which limit the number of the main burners inthe panel. And these auxiliary burners operate only when the mainburners are off.

An object of the present invention is to eliminate these problems andprovide a gas-fired infrared radiant panel, wherein a relatively largeeffective area of the panel is combined with all the burners serving asmain burners, the number of the means of ignition, control andinspection being minimum, and the operation of the panel beingdependable.

In accordance with the above-mentioned object of the invention, a gaspanel of infrared radiation is proposed wherein burners are arranged insubstantially horizontal rows, one ignition device being available forseveral burners.

According to the invention, in the row of burners which is fitted withan ignition device, mountedover the burners, at least over every secondburner, are provided with screens located in the path of the upward flowof combustion products for directing the flame of the operating burnerstowards the adjacent burners to be fired.

It is preferable to make the screens in the form of plates locatedacross the direction of movement of the upward flow of combustionproducts.

Taking into account relatively wide intervals between the adjacentburners, it is advisable to locate each screen so that it covers the gapbetween adjacent burners. Also it is advantageous to have the screenbent so that it has a concave surface facing the burners.

It is advisable that the pipe feeding gas to the distribution header belocated near the burners provided with igniters.

If part of the burners in the panel have horizontally elongated nozzles,it is preferable to locate these burners so that they are adjacent to arow of burners with vertically elongated nozzles. In this case, it isdesirable to locate the screens at the rows of burners with horizontallyelongated nozzles.

An essential advantage of the present invention lies in the fact that asignificant simplification of the panel design is realized along with anincreased dependability in the operation thereof.

Following is a description of several embodiments of the presentinvention with reference to the accompanying drawing, wherein:

FIG. 1 is a schematic view of a part of a vertically mounted gas panelmade according to the invention;

FIG. 2 is an embodiment of the vertically mounted panel wherein theburners are spaced at some distance from one another;

FIG. 3 is an embodiment of a horizontally mounted panel;

FIG. 4 illustrates the gas supply system of the panel;

FIG. 5 is an embodiment of the panel with a staggered location of theburners; and

FIGS. 5, 6, 7 are embodiments of a panel with a part of the burnershaving horizontally elongated nozzles.

The essence of the invention will become more fully apparent from aconsideration of the following exemplary embodiment of a vertical panelof infrared radiation, part of which is diagrammatically represented inFIG. 1 showing three burners l of infrared radiation, the tips of whichare elongated in the vertical direction.

The middle burner is fitted with igniter 2. Placed over this burner inthe path of the outgoing flow of combustion products is a screen 3 inthe fonn of a flat plate extending beyond the nozzle. When the igniteris fired, a microexplosion of the gas-air mixture at the nozzle of themiddle burner takes place; the shock wave encounters the screen placedacross the direction of movement of the ascending combustion products,and is thus reflected therefrom, theflame shifting to adjacent burners 1and firing them. a

Flat screens 3 are preferably placed over every other burner, withrelatively small distances between the adjacent burners.

When spacing the adjacent burners l at relatively large distances fromone another (FIG. 2), screens 3a are placed so that one end of thescreen should be over one burner 5, and the other end-over anotherburner adjacent to the first one. In this case, the screens are of abent shape, their concave surfaces facing the burners. The flame isreflected directionally (as a light beam from a spherical mirror). Theigniter is fixed in the middle burner.

In horizontally mounted panels (FIG. 3) screens 3a are also located inthe path of the ascending combustion products and cover the gaps betweenthe adjacent burners 1. In this case, the screens are mainly locatedparallel to the burner nozzles.

In the embodiment of the panel pipe 4 (FIG. 4) supplying gas to piping5, which distributes gas to burners 1, it is expedient to locate screens3b approximately opposite the middle of the panel, and the ignitiondevice 2 is mounted in the burner disposed centrally with respect to therest of the burners.

Such a design of the panels provides conditions for reliable firing ofthe burners (the flame and gas flows will spread in parallel directionsand substantially simultaneously).

Screens 3b (FIG. 4) are made of bent plates.

When the burners are located on the panel in a staggered order (FIG. 5),screens 3 are placed'over the lower burner (in between the upperburners).

The edges of the screen plates are in this case positioned close to theupper burner nozzles to secure reliable flame reflection from one burnerto another.

Ifin a vertically mounted panel, some burners 6 (FIGS.6, 7) havehorizontally elongated nozzles, and other burners l have verticallyelongated nozzles, the screens 3 are placed over burners 6 (FIG. 6) whenburners l are arranged in straight rows, or over burners 1 (FIG. 7) whenthe latter are arranged according to a staggered order. But in allcases, the positioning of the screens is defined by the requirement tosecure reliable firing of the burners with a minimum number of screensand with at least one igniter.

Referring in greater detail to FIG. 6 therein is seen a row of verticalburners l surmounted by horizontal burners 6, each horizontal burnerextending above two vertical burners. All the burners are supplied withgas from a common piping 5. The screens 3 extend over the gaps betweenadjacent burners 6 and serve to fire adjacent horizontal and verticalburners as shown in FIG. 6 when igniter 2 is ignited.

The arrangement in FIG. 7 differs from that in FIG. 6 only by thevertically staggered arrangement of the burners 1 and the placement ofthe screens 3 over respective burners 1.

We claim:

1. Apparatus comprising a plurality of burners, means for supportingsaid burners adjacent one another, one of said burners includingignition means for igniting a gas supplied to said one burner, andreflecting means for reflecting combustion products issuing from saidone burner to said burners adjacent said one burner for igniting gassupplied to adjacent burners, said reflecting means including aplurality of reflecting elements spaced from one another and from saidburners for successively reflecting issuing combustion products toadjacent burners.

2. Apparatus as claimed in claim 1, wherein said reflecting elements areconstituted by plates having opposite end portions respectivelyoverlying two adjacent burners.

3. Apparatus as claimed in claim 2, wherein said plates each have aconcave surface opposing the combustion products issuing from saidburners.

3 Q 4. Apparatus as claimed in claim 1, wherein said reflectinggelements are supported opposite at least every second of saidiyburners.

5. Apparatus as claimed in claim 4 wherein said reflecting elements areconstituted as plates extending transversely "of 5 r, the direction ofascending flow of combustion products.

6. Apparatus as claimed in claim 4 .wherein relatively wide gaps areformed betweenadjacent burners, each said reflecting-elements extendingacross the gap between adjacent burners.

7. Apparatus as claimed in claim 4 wherein said reflecting elements arebent and have a concave surface facing the bur- INKS.

8. Apparatus as claimed in claim 4 wherein said burners are verticallymounted in a first lower horizontal row and are mounted horizontally ina second'horizontal row above the first, said reflecting elemehtsextending above the burners in the first row.

2. Apparatus as claimed in claim 1, wherein said reflecting elements areconstituted by plates having opposite end portions respectivelyoverlying two adjacent burners.
 3. Apparatus as claimed in claim 2,wherein said plates each have a concave surface opposing the combustionproducts issuing from said burners.
 4. Apparatus as claimed in claim 1,wherein said reflecting elements are supported opposite at least everysecond of said burners.
 5. Apparatus as claimed in claim 4 wherein saidreflecting elements are constituted as plates extending transversely ofthe direction of ascending flow of combustion products.
 6. Apparatus asclaimed in claim 4 wherein relatively wide gaps are formed betweenadjacent burners, each said reflecting elements extending across the gapbetween adjacent burners.
 7. Apparatus as claimed in claim 4 whereinsaid reflecting elements are bent and have a concave surface facing theburners.
 8. Apparatus as claimed in claim 4 wherein said burners arevertically mounted in a first lower horizontal row and are mountedhorizontally in a second horizontal row above the first, said reflectingelements extending above the burners in the second row.
 9. Apparatus asclaimed in claim 4 wherein said burners are vertically mounted in afirst lower horizontal row and are mounted horizontally in a secondhorizontal row above the first, said burners in the first row beingstaggered vertically, said reflecting elements extending aboverespective burners in the first row.